查询词典 on the level

In this thesis , I use relevant theories of regional economics,system engineering methord ,and industry"s economics, and adopt research methords of gange analysis , facts analysis and comparison analysis to make objective and just appraisal on the actural conditions of each country regional economic development of Hubei province on the basis of setting up the comprehensive appraising system of country economic strength ; and I divide all coutry of Hubei into three classes more developed country , the undeveloped country and poor country and analyse the reasons for forming three kinds of different development levels, then I set up plural linear regression model to announce the role of every influence factor in Hubei country economic development by regarding economic development level as depentent variable and regarding the seven influence factors(stock of the capital .industrial structure,government"s efficiency ,economic vigor ,technological innovation ability,agricultu ral innovationability, agr icultural resource and export-oriented degree of economy )as independent variable.

本文运用区域经济学、计量经济学、产业经济学的相关理论，采用规范分析、实证分析、比较分析相结合的研究方法，在建立县域经济综合实力评价体系的基础上，对湖北省各个县域经济发展的实际情况作出了客观公正的评价，并把湖北各县域分为三大类：较发达县、欠发达县和贫困县，且对形成三类县域不同发展水平的原因进行了分析。然后以经济发展水平为因变量，以资本存量、产业结构、政府效率、经济活力、技术创新能力、农业资源禀赋和经济外向度等七个方面的影响因素为自变量，建立多元线性回归模型，揭示各影响因素在湖北县域经济发展中的作用。

The study of the long-term dynamic change of soil organic matter and its affecting factors of geoponic practices were important for a comprehensive management on soil fertility. In this paper, based on the soil fertilizer monitoring data in 1980 and 1999 at county level, household survey and statistics data, the dynamic change of soil organic matter content and its affecting factors by relevant agricultural practices in the past twenty years were analyzed comprehensively.

本文以河北省曲周县为例，采用1980年和1999年两次全县的土壤肥力监测以及农户调查数据和统计数据，系统分析了过去20年中土壤有机质的动态及其与之相关的农作管理方式的变化。

The study of the long-term dynamic change of soil organic matter and its affecting factors of geoponic practices were important for a comprehensive management on soil fertility. In this paper, based on the soil fertilizer monitoring data in 1980 and 1999 at county level, household survey and statistics data, the dynamic change of soil organic matter content and its affecting factors by relevant agricultural practices in the past twenty years were analyzed comprehensively.

本文以河北省曲周县为例，採用1980年和1999年两次全县的土壤肥力监测以及农户调查数据和统计数据，系统分析了过去20年中土壤有机质的动態及其与之相关的农作管理方式的变化。

The research works on the crust and upper mantle structure in Jiangsu province and its adjacent areas, that is divided into the southeastern Yangzi block, the southern segment of Tancheng-Lujiang fault zone, the eastern segment of Dabie orogen and the Sulu UHPM block according to geotectonics and research level, are introduced based on the results of different research methods such as deep seismic sounding, earthquake travel time tomography and other geophysical survey.

根据江苏及邻区大地构造单元和人工地震研究程度的不同，划分为下扬子地区、郯庐断裂带、大别山东段、苏鲁地块等地区，介绍了利用人工地震、天然地震层析成像及其它地球物理探测等方法对这一地区的深部构造研究结果。

The results showed that at the beginning stage of being attacked by Chinesis white pine beetle and their symbiotic blue-stain fungus, PAL, PPO, SOD activities and MDA content significantly increased in the phloem of P. armandi, and decreased with the increase of the number of D. armandi and the attacking on the xylem and phloem of P. armandi from blue-stain fungus, then reached the minimum level in withering stage of P. armandi. But the contents of nutrition materials in the phloem, such as water, protein, glucide, fat, amylum and so on, declined with the infestation of D. armandi and symbiotic fungus. In summary, the resistance of physiology and biochemistry in the phloem of P.

结果表明，在华山松大小蠹和共生蓝变真菌危害初期，华山松韧皮部内的苯丙氨酸解氨酶、多酚氧化酶、超氧化物歧化酶活性均显著提高，丙二醛含量明显增加；但随着华山松大小蠹种群数量的增加和蓝变真菌对华山松韧皮部和木质部组织危害的加剧，韧皮部组织内的PAL、PPO和SOD活性逐渐降低，在枯立木阶段降至最低；与此同时，华山松韧皮部内的水分及蛋白质、糖类、粗脂肪、淀粉等营养物质含量，则随华山松大小蠹和共生蓝变真菌危害的加剧而不断减少。

The thesis is based on income question, forest coverage rate and grop production.to beging with, date envelopment analysis is proved that it can be applicated into grain for green in shan-bei district, and then in view of the fact, seven esential factors which have influence on the project are found out: expense of dam, expense of crop,expense of cash tree ,expense of defense tree,other economic crop,expense of grass and graziery;and the output factors include:income of gdp,pure income per captia,the area of decreasing land loss,graziery income ,crop production,income of tree,the totle income of economic crop.after the date of each facts are puted into dea model,unefficiencial decision making units found.the data that are got through adjusting unefficiencial dmus dy dea can offer guide in shanbei district upgrading of an industrial structure.at the same time ,taking into account some possible problems in or after grain for green in shan-bei district,the thesis bring out some propesal to improve the circumstance,enhance the life level and putthe relation of population,resource and circumstance into a healthy orbit.

论文以解决陕北地区的收入问题，植被问题以及粮食产量问题为出发点，首先从理论上分析了包络分析方法在陕北地区退耕还林中运用的可行性，然后结合陕北地区目前的实际情况，综合分析出影响陕北地区退耕还林的关键的七个因素作为输入指标：水利水保设施投入，农作物投入，经济林种支出，防护林支出，其它经济作物，草类支出，畜牧业投入；以退耕还林所要解决的最终问题作为输出指标：GDP收入、农民人均纯收入、水土流失减少量、牧业总产值、粮食产量、林业总产值、其他经济作物总产值。将各指标所对应的数据代入模型后，通过分析求解得出非有效的决策单元，再运用包络分析方法的一些基本原理对非有效的决策单元进行调整，由此所得的数据对陕北地区的实际投入具有很好的指导意义。同时，又针对陕北地区在退耕还林过程中以及之后可能面临的困境，提出了一些建议和对策。最终使得陕北地区的投资环境尽快得以改善，使农民尽快脱贫致富，使人口、资源、环境的关系尽快纳入良性循环的轨道上。

Based on the history data, field survey and sampling data of the Daihai Basin, the global climate change and it induced-lake water level and hydrochemical characteristics changes under human activities in the late 50 years, as well as their influences on environment were analyzed.

在历史资料与实地调查、采样分析的基础上，分析了岱海流域近50年来的气候变化，以及在气候变化和人类活动影响下的湖泊水位、水化学等特徵的变化，并对由此产生的环境问题进行探讨。

Based on the history data, field survey and sampling data of the Daihai Basin, the global climate change and it incluced-lake water level and hydrochemical characteristics changes under human activities in the late 50 years, as well as their influences on environment were analyzed.

气候变化和人类活动是环境问题的两个重要驱动因素，在过去的50年中，全球气候变化异常活跃，人类活动对自然的影响也在不断加剧。水文要素因其在自然地理环境中的特殊位置对区域环境变化有较强的敏感性，尤其是作为流域&汇&或节点的湖泊，更是对流域环境变化有综合指示作用。

Based on the history data, field survey and sampling data of the Daihai Basin, the global climate change and it induced-lake water level and hydrochemical characteristics changes under human activities in the late 50 years, as well as their influences on environment were analyzed.

在歷史资料与实地调查、採样分析的基础上，分析了岱海流域近50年来的气候变化，以及在气候变化和人类活动影响下的湖泊水位、水化学等特徵的变化，並对由此產生的环境问题进行探討。

Starting with the elevation of underground water resources and a safe level of mining through variable system theory, this paper analyzes the conditions of underground water resources based on the well-studied determination method of determining the two hydrographical coefficients: rainfall infiltration replenishment rate and irrigation replenishment rate. Then considering irrigation, rainfall, drainage and other related factors, a mathematical model is set up for the calculation of underground water storage,exploitation on water regulation. After analyzing the adaptability of molepipe drainage, an underground water table regulation is given out.

论文从灌区的地下水资源及其可开采量评价分析方面入手，在对两个主要的水文地质参数即降雨入渗补给系数、灌溉入渗补给系数确定方法研究的基础上，对灌区的地下水资源状况进行分析，依据灌区的灌溉、降雨、排水条件及各种现状因素，建立了地下水资源量计算的数学模型，西安理工大学工程硕士专业学位论文计算得到青铜峡灌区地下水的最大补给量和可开采量；另外对在开发利用地下水资源过程中的地下水位的调控进行了初步的探讨，在银北灌区开展对暗管排水调控地下水位的试验研究。

I use an example quoted by Hu Jiaqi:"It is reported that America separates the DNA of a kind of virus by making use of genetic technology and combines it with another kind of DNA. Finally, they get a kind of virulent biological agent called a "pyrotoxin". Someone discloses in private that 20 grams of such a kind of biological agent could result in the global death of 6 billion people due to infection."

我在这里例举胡家奇所引用过的例子："据报道，美国利用转基因技术，将一种病毒的DNA分离出来，与另外一种DNA进行结合，拼结成一种剧毒的"热毒素"生物战剂，且私下有人透露，这种生物战剂只需20克，就可以导致全球60亿人全部感染死亡。"

Waiting, for the queers and the coons and the Reds and the Jews.

等待着疯子和黑人还有红色共产主义者还有犹太人